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Finding the Fourth Proportional to 123,327.54, 170,192.54 and 66,738.92

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Solution

The fourth proportional to 123,327.54, 170,192.54 and 66,738.92 is: 92,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,327.54 : 170,192.54 = 66,738.92 : x
  2. Step 2: Convert to fraction form
    123,327.54/170,192.54 = 66,738.92/x
  3. Step 3: Cross multiply
    123,327.54x = 170,192.54 × 66,738.92
  4. Step 4: Simplify right side
    123,327.54x = 11,358,465,127.00
  5. Step 5: Solve for x
    x = 11,358,465,127.00/123,327.54
  6. Step 6: Final answer
    x = 92,099.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.